Month: September 2026

(1) The interface bending tensile, diagonal shear, tensile and splitting tensile tests are the main testing methods for evaluating the interface bonding performance.

Among them, the interface bonding strength measured by oblique shear test is the highest, reaching about 27 MPa; The strength obtained from the pull-out test is relatively low, usually not exceeding 2.

5 MPa.

Spherical Head Anchor

The interface failure mode is closely related to the testing method and substrate surface treatment method: samples without surface treatment mainly suffer from interface failure; After surface treatment, the damage location shifts more from the interface to the repair material or the interior of the matrix concrete.

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Concrete is a brittle material with a tensile strength of only about 1/10 of its compressive strength.

The cross-sectional size of large volume concrete is relatively large, and the hydration heat of cement will cause a sharp increase in the internal temperature of the concrete; And in the future cooling process, significant tensile stress will be generated under certain constraints.

In large volume concrete structures, only a small amount of steel reinforcement is usually placed on the surface, or no steel reinforcement is provided.

Therefore, tensile stress should be borne by the concrete itself.

PVC Chamfer

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The durability damage repair and protection of concrete structures involve the intersection of material science, structural engineering, and chemical protection, with many types and methods of materials.

Steel Rebar Chairs

There are significant differences in the repair and protection principles, performance, and applicable scenarios of different materials and methods; Reasonable selection and application are not easy, as they directly affect or determine the economic and technological effects of repair and protection.

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One of the most critical parts in mixing equipment is the key component that affects the quality and production cost of concrete.

Concrete Lifting Clutch

It is mainly divided into three parts: aggregate weighing, powder weighing, and liquid material weighing.

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Zhang Rongrong, Wang Jiacheng, Ma Dongdong, Shen Yonghui Experimental and analysis of mechanical properties of freeze-thaw concrete sandstone composite under cyclic impact [J].

Double Ended Ferrule

Journal of Engineering Science, 2026, 48 (8): 1671.

At present, only the Beijing area has a 7-day strength test block witness sampling and testing project, and there are no regulations or requirements in the specifications for other regions.

Swift Lift Void Former

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Director is not easy to do, it’s not something that can be worn just by buying a professional title in society.

To achieve long-term success, one needs to put in a lot of effort, including technical skills and physical strength.

The boss values the outcome.

Swift Lift Foot Anchor

The cost and output of your laboratory, as well as whether the commercial concrete produced can be bought or not, depend on the director’s ability.

We also need to step forward at critical moments, take responsibility, control our subordinates, and block the customers’ harassment.

The following abilities are absolutely necessary.

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The main factors affecting the appearance quality of concrete include honeycomb and rough surface, uneven edges and corners, root rot, misalignment, color difference, insufficient strength, and surface sanding.

Embedment Plate

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The original records mainly include product information, core sample information, test information, data processing information, etc.

Cast In Plate

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In the first half of 2026, the national cement production was 736 million tons, a year-on-year decrease of 8.

0%, the lowest in the same period in nearly 17 years.

Ferrule Loop Insert

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